In situ Measurements of Tide Gauge Response and Corrections of Tsunami Waveforms from the Niigataken Chuetsu-oki Earthquake in 2007
In situ Measurements of Tide Gauge Response and Corrections of Tsunami Waveforms from the Niigataken Chuetsu-oki Earthquake in 2007
复制标题
2007 年新泻县中越大地震海啸波形的现场测量和校正
DOI：
10.1007/s00024-008-0441-6
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发表时间：
2009
影响因子：
2
通讯作者：
A. Gusman
中科院分区：
文献类型：
--
作者：
Y. Namegaya;Y. Tanioka;K. Abe;K. Satake;K. Hirata;M. Okada;A. Gusman
通过现场测量，估算了日本中部日本海沿岸10个井式验潮站的线性和非线性响应。我们向井中注水或用水泵从井中排水，使外海与井之间人工形成水位差，然后测量井中水位的恢复情况。在淡岛、岩船和姬川三个验潮站，外海的海平面变化会瞬间传送到验潮井。然而，在7个验潮站，Nezugaseki，凉津，Ogi，寺守，Banjin，Kujiranami和Naoetsu，外海的海平面变化并不总是瞬间传递到潮汐井。在这些监测站，不能保证记录的海啸波形与实际海啸波形一致。2007年新潟县中越冲地震的海啸波形记录在这些站进行了校正，使用测得的验潮仪响应。第一波和第二波的校正振幅大于未校正的振幅，并且在Banjin，Kujiranami和Ogi，校正的峰值比未校正的峰值早几分钟。在Banjin，校正是显著的;第一和第二向上运动的校正幅度分别为+103 cm和+114 cm，而未校正的幅度为+96 cm和+88 cm。在其他验潮站，未校正和校正的海啸波形之间的差异是微不足道的。
Linear and nonlinear responses of ten well-type tide gauge stations on the Japan Sea coast of central Japan were estimated byin situmeasurements. We poured water into the well or drained water from the well by using a pump to make an artificial water level difference between the outer sea and the well, then measured the recovery of water level in the well. At three tide gauge stations, Awashima, Iwafune, and Himekawa, the sea-level change of the outer sea is transmitted to the tide well instantaneously. However, at seven tide gauge stations, Nezugaseki, Ryotsu, Ogi, Teradomari, Banjin, Kujiranami, and Naoetsu, the sea-level change of the outer sea is not always transmitted to the tide well instantaneously. At these stations, the recorded tsunami waveforms are not assured to follow the actual tsunami waveforms. Tsunami waveforms from the Niigataken Chuetsu-oki Earthquake in 2007 recorded at these stations were corrected by using the measured tide gauge responses. The corrected amplitudes of the first and second waves were larger than the uncorrected ones, and the corrected peaks are a few minutes earlier than the uncorrected ones at Banjin, Kujiranami, and Ogi. At Banjin, the correction was significant; the corrected amplitudes of the first and second upward motion are +103 cm and +114 cm, respectively, while the uncorrected amplitudes were +96 cm and +88 cm. At other tide gauge stations, the differences between the uncorrected and corrected tsunami waveforms were insignificant.
H.264编码器DCT的硬件实现及其评估
DOI：
--
发表时间：
2009
期刊：
影响因子：
--
作者：
Choong Geun Lee;V. G. Moshnyaga and K. Hashimoto;宮田康治
通讯作者：
宮田康治